diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/esp.h | 54 |
1 files changed, 8 insertions, 46 deletions
diff --git a/include/net/esp.h b/include/net/esp.h index c05f529bff2..d58451331db 100644 --- a/include/net/esp.h +++ b/include/net/esp.h @@ -1,58 +1,20 @@ #ifndef _NET_ESP_H #define _NET_ESP_H -#include <linux/crypto.h> -#include <net/xfrm.h> -#include <linux/scatterlist.h> +#include <linux/skbuff.h> -#define ESP_NUM_FAST_SG 4 +struct crypto_aead; -struct esp_data -{ - struct scatterlist sgbuf[ESP_NUM_FAST_SG]; - - /* Confidentiality */ - struct { - int padlen; /* 0..255 */ - /* ivlen is offset from enc_data, where encrypted data start. - * It is logically different of crypto_tfm_alg_ivsize(tfm). - * We assume that it is either zero (no ivec), or - * >= crypto_tfm_alg_ivsize(tfm). */ - int ivlen; - int ivinitted; - u8 *ivec; /* ivec buffer */ - struct crypto_blkcipher *tfm; /* crypto handle */ - } conf; - - /* Integrity. It is active when icv_full_len != 0 */ - struct { - u8 *work_icv; - int icv_full_len; - int icv_trunc_len; - struct crypto_hash *tfm; - } auth; +struct esp_data { + /* 0..255 */ + int padlen; + + /* Confidentiality & Integrity */ + struct crypto_aead *aead; }; extern void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len); -static inline int esp_mac_digest(struct esp_data *esp, struct sk_buff *skb, - int offset, int len) -{ - struct hash_desc desc; - int err; - - desc.tfm = esp->auth.tfm; - desc.flags = 0; - - err = crypto_hash_init(&desc); - if (unlikely(err)) - return err; - err = skb_icv_walk(skb, &desc, offset, len, crypto_hash_update); - if (unlikely(err)) - return err; - return crypto_hash_final(&desc, esp->auth.work_icv); -} - struct ip_esp_hdr; static inline struct ip_esp_hdr *ip_esp_hdr(const struct sk_buff *skb) |